FOX LAKE CORRECTIONAL INSTITUTION

MADISON, WI · ~1,850 people served

Check your exact address → MADISON overview

100

Excellent

PurityRadar safety score

PWSID

WI1140144

State

Wisconsin

City

MADISON

Population served

1,850

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2025. Official EPA record →

Other · EPA contaminant 7500 began Oct 2024 Unaddressed

Monitoring & reporting · Lead & Copper Rule began Apr 2012 Unaddressed

Monitoring & reporting · Lead & Copper Rule began Oct 2011 Unaddressed

Other · EPA contaminant 7500 began Apr 2011 Unaddressed

Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Resolved

Reporting · EPA contaminant 5200 began Oct 2024 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2014 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2014 Resolved

Treatment technique · Lead & Copper Rule health-based began Apr 2012 Resolved

Other · EPA contaminant 7500 began Apr 2009 Resolved

Other · EPA contaminant 7500 began Jan 2009 Resolved

Recent enforcement actions

State action · SOX Aug 2025
EPA/federal action · EIA Jun 2025
State action · SOX Nov 2024
State action · SO8 Mar 2019
State action · SO8 Mar 2019
State action · SO8 Jul 2018
State action · SO8 Jul 2018
State action · SOX Jul 2015

This profile is built from EPA public records for system WI1140144 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.